How can we answer these questions? 1) What other methods could you have used to identify the unknown chemical? 2). What is/are the dominant species in solution at pH = 4.4? 3) Does the solution at pH = 4.9 constitute a buffer? What about at pH- 5.9? Explain

Q: The combustion of one mole of propane, C3H8, releases 531 kcal. How much heat is released by the…

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Q: A H₂N. CH₂CH3 B CH,CH,NH,

A: The elimination reaction produces benzyne, or dehydrobenzene, a highly reactive intermediate that…

Q: At a constant temperature, 5.08 moles of a gas fills 11.37 L. How many moles of that gas could fill…

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Q: The molar solubility of silver iodide in a water solution is M.

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Q: 45. Ethanol is a polar compound that readily dissolve in water, so it is A) immiscible 8

A: Given that Ethanol is a polar compound i.e. readily dissolve in water . So, ethanol is miscible with…

Q: What is the end product of these Carbonyl Redox reactions? Please show and explain the mechanisms? 3…

A: NABH4  is reducing agent it a source of hydrogens

Q: Give the Keq. Stoichiometry was used to calculate concentrations. (answer is 21.8) 수 MgCO3 (s) + 2…

A: Equilibrium constant,  Keq for a reaction is defined as the product of the equilibrium molar…

Q: H₂, Ni 0₂, Co²+ с

A: To determine the product of given organic reaction

Q: in 18 Which of the following Grignard reactions would not lead to the alcohol product below? @ (b)…

A: The given reactions are examples of reaction of ketone with grignards reagent forming 3o- alcohol…

Q: Give the organic product: (amine) || on Select one: OB. III N-H OD. IV NH₂ Br Br N-H IV ? OL N-Br Br…

A: This is an example of acid-base reaction

Q: A chemist titrates 130.0 mL of a 0.7300M butanoic acid (HC3H₂CO₂) solution with 0.6738 M NaOH…

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Q: 12 Why is ethanal a stronger acid than ethane? || CH3-C-H CH3-CH3 ethane ethanal A. The conjugate…

A: Acid strength of a molecule depends negative inductive effect of attached group and resonance effect…

Q: What is the smallest whole-number coefficient for H₂O when the equation MnO4 + 1 + H₂O → MnO2 + 103¯…

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Q: Draw 4 possible products: 0 + O OH 4Heat

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Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts.…

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Q: For photosynthesis to occur, 2801 kJ/mole of energy is required. Add the ΔH to the correct side of…

A: The equation given is the chemical equation for photosynthesis, which is the process by which green…

Q: To prepare 5.75 L of a 1.3 M solution using 800 mL of a stock solution, what concentration of stock…

A: Molarity = number of moles/Volume Number of moles= mass/molar mass M1V1 = M2V2 M1 and M2 are…

Q: Identify the product(s) for the following reaction. SO H FeCl3 Cl₂ SO H SO H 90 H SO H

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Q: 18 Which of the following compounds is the strongest carbon acid (which has the most acidic H's)? A…

A: 18) Alpha hydrogens of compounds having electron withdrawing groups are acidic in nature. Greater…

Q: A 0.175 g of primary standard KIO3 requires 11.70 ml of Na2S2O3 solution for titration. what is the…

A: Following information about the reactants given -  Mass of primary standard KIO3 = 0.175 g  Volume…

Q: How many calcium ions are in one unit cell? How many oxygen ions are in one unit cell? How many…

A: The smallest part of a crystal lattice that displays the three-dimensional structure of the complete…

Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: We have to write the elements which satisfy given conditions and has atomic number of 92 or less.…

Q: Consider a manometer (a barometer-like device used for measuring pressure) constructed using ethyl…

A: Given: Density of ethyl alcohol = 0.789 g/mL Height of Hg = 13.0 mm Density of Hg = 13.56 g/mL

Q: a) Calculate the Keq from the concentrations, all are gases. Stoichiometry was used to calculate…

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Q: The specific heat capacity of aluminum is 0.214 cal/g °C.. How many calories of heat are necessary…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: C3) Draw the product for each reaction below. 50 % NaOH + PPh3 []+ H 10⁰ 50 % NaOH 80°

A: Here we have to draw the product of same reaction with different reaction condition-

Q: Give the SN2 product(s) for the reaction of (R)-2-bromopentane with an excess of sodium methoxide.…

A: Here we have to mention SN2 products for the reaction of (R)- 2-bromopentane with excess sodium…

Q: a sample of gas initially at 4.00 atm was compressed from 7.00 L to 3.00L at constant temperature.…

A: Given, Initially Pressure of a gas (P1) = 4.00 atm Volume of a gas (V1) = 7.00 L Finally: (after…

Q: U-235 has a half-life of 713 million years and the age of the sample is 2.631 years old then how…

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Q: The next questions are related to the titration of 25.00 mL of a 0.0950 M acetic acid solution with…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Can someone tell me what the appropiate E/Z conformation for this example is?

A: Steps to find the E / Z configuration in a compound :  Assign priority to each substituent around…

Q: 11 A What is the missing reactant? CH3 Br LDA -78°C B THF 0 H-C-OCHS ? C H-C-H -CH3 D CH3OH

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Q: The molar solubility of palladium (II) thiocyanate at 25°C is 2.22 x 10-8 M. What is its Ksp value?…

A: molar solubility=S=2.22×10-8M KSP=?

Q: What is the major product of the substitution reaction below? (a) (b) CH3CH₂OH OCH₂CH3 OCH₂CH₂ (0)…

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Q: What quantity in moles of precipitate will be formed when 73.7 mL of 0.150 M AgNO₃ is reacted with…

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Q: "Synthesis gas" is a mixture of carbon monoxide and water vapor. At high temperature synthesis gas…

A: Answer: Value of equilibrium constant KP is equal to the ratio of partial pressure of product gases…

Q: For the fusion reaction shown, calculate the change in energy of the reaction in units of joules per…

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Q: (c) Aqueous solutions of Co2+ salts are pale pink. They contain the complex ion [Co(H₂O)]2+.…

A: (c) To provide explanation for the difference in transition energies for both the complexes and why…

Q: Give the organic product: O NO₂ -NH₂ b NH Sn. HCl(aq) dil NaOH(aq) heat B D OH -NO₂

A: Here we have to write the product of given reaction

Q: The temperature of a 15 g sample of a metal increases from 22 °C to 37 °C upon the addition of 29.0…

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Q: When solutions of H2SO4 and NaOH react, the balanced molecular equation is H2SO4(aq) + 2NaOH(aq)+ 2…

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Q: Consider the formation of a complex between one silver cation and four thiocyanate (SCN) ligands.…

A: To determine the overall charge on the complex formed between one silver cation and four thiocyanate…

Q: The following information is given for aluminum at 1 atm: Tb = 2467.00°C Tm = 660.00°C Specific heat…

A: Answer: Heating of given sample of Aluminum is a 3 step process: 1. Heating of solid Aluminum up to…

Q: A C NHCH. CH₂ CH₂ NH 188 CH, D CH O CH. 543-H

A: Diazonium Coupling reaction

Q: A weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has what volume in L at -15.6 °C…

A: Initial temperature (T1) = 0.00 °C = (0.00+273.15) K = 273.15 K Initial volume (V1) = 20.0 L Final…

Q: Given the information A+B 2D CID calculate AG at 298 K for the reaction A+B 2C AG" = AH' = -716.6 kJ…

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Q: 1 20 What sequence of reactions will accomplish the following synthetic transformation? & A CO,H…

A: This question based on conversion of reactant into product by using suitable reagent.

Q: 4A. Osmotic Pressure Osmotic pressure is the minimum pressure which needs to be applied to a…

A: Formula

Q: How much heat was absorbed (in J) if a 47.8 g sample of an alloy with a specific heat of 0.504 J/g…

A: Mass of the sample of an alloy = 47.8 g specific heat of the sample =  0.504 J/g °C Change in…

Q: It is desired to prepare 500 mL of 0.200 normal KOH for use in the reaction: HCIO4 +KOH →→→→K CIO4 +…

A: Volume of solution=500 ml =0.5 Litre  Normality of solution= 0.200 We need to calculate the mass of…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.